http://hdl.handle.net/20.500.14044/35638 Sun, 26 Jul 2026 06:15:33 GMT 2026-07-26T06:15:33Z https://https://oda.uni-obuda.hu:443/bitstream/id/e7baae0a-006a-468f-b240-ad94a20e64d6/ http://hdl.handle.net/20.500.14044/35638